diff --git a/llama_stack/providers/inline/agents/meta_reference/persistence.py b/llama_stack/providers/inline/agents/meta_reference/persistence.py
index 9abb7413c..9a2663567 100644
--- a/llama_stack/providers/inline/agents/meta_reference/persistence.py
+++ b/llama_stack/providers/inline/agents/meta_reference/persistence.py
@@ -21,6 +21,8 @@ log = logging.getLogger(__name__)
 class AgentSessionInfo(BaseModel):
     session_id: str
     session_name: str
+    # TODO: is this used anywhere?
+    vector_db_id: Optional[str] = None
     started_at: datetime